2 * Copyright (c) 2001 Cubical Solutions Ltd. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * capi/capi_llif.c The i4b CAPI link layer interface.
27 * $FreeBSD: src/sys/i4b/capi/capi_llif.c,v 1.1.2.1 2001/08/10 14:08:34 obrien Exp $
28 * $DragonFly: src/sys/net/i4b/capi/capi_llif.c,v 1.6 2006/12/22 23:44:55 swildner Exp $
31 #include <sys/param.h>
32 #include <sys/kernel.h>
33 #include <sys/systm.h>
35 #include <sys/socket.h>
38 #include <net/i4b/include/machine/i4b_debug.h>
39 #include <net/i4b/include/machine/i4b_ioctl.h>
40 #include <net/i4b/include/machine/i4b_cause.h>
42 #include "../include/i4b_l3l4.h"
43 #include "../include/i4b_mbuf.h"
44 #include "../include/i4b_global.h"
45 #include "../layer4/i4b_l4.h"
48 #include "capi_msgs.h"
52 // CAPI link layer control routine. Called by a link layer
53 // driver when its state changes.
57 capi_ll_control(capi_softc_t *sc, int op, int arg)
62 sc->sc_state = C_READY;
65 * Register our CAPI ApplId and send CAPI_LISTEN_REQ
66 * with CIP Mask value 1 (match all).
69 sc->reg_appl(sc, I4BCAPI_APPLID, sc->sc_nbch);
70 capi_listen_req(sc, 0x10007);
73 sc->sc_state = C_DOWN;
74 /* XXX go through cds and notify L4 of pdeact? XXX */
78 case CAPI_CTRL_PROFILE:
79 bcopy((char*) arg, &sc->sc_profile, sizeof(sc->sc_profile));
82 case CAPI_CTRL_NEW_NCCI:
83 case CAPI_CTRL_FREE_NCCI:
84 /* We ignore the controller's NCCI notifications. */
88 kprintf("capi%d: unknown control %d\n", sc->sc_unit, op);
96 // Array of message-handler pairs used to dispatch CAPI
97 // messages sent to I4BCAPI_APPLID.
100 static struct capi_cmdtab {
102 void (*handler)(capi_softc_t *, struct mbuf *);
103 } i4b_capi_handlers[] = {
104 { CAPI_LISTEN_CONF, capi_listen_conf },
105 { CAPI_INFO_IND, capi_info_ind },
106 { CAPI_ALERT_CONF, capi_alert_conf },
107 { CAPI_CONNECT_CONF, capi_connect_conf },
108 { CAPI_CONNECT_IND, capi_connect_ind },
109 { CAPI_CONNECT_ACTIVE_IND, capi_connect_active_ind },
110 { CAPI_CONNECT_B3_CONF, capi_connect_b3_conf },
111 { CAPI_CONNECT_B3_IND, capi_connect_b3_ind },
112 { CAPI_CONNECT_B3_ACTIVE_IND, capi_connect_b3_active_ind },
113 { CAPI_DATA_B3_CONF, capi_data_b3_conf },
114 { CAPI_DATA_B3_IND, capi_data_b3_ind },
115 { CAPI_DISCONNECT_B3_IND, capi_disconnect_b3_ind },
116 { CAPI_DISCONNECT_CONF, capi_disconnect_conf },
117 { CAPI_DISCONNECT_IND, capi_disconnect_ind },
123 // CAPI link layer receive upcall. Called by a link layer
124 // driver to dispatch incoming CAPI messages.
128 capi_ll_receive(capi_softc_t *sc, struct mbuf *m)
130 u_int8_t *p = mtod(m, u_int8_t*);
131 u_int16_t len, applid, msgid, cmd;
133 capimsg_getu16(p + 0, &len);
134 capimsg_getu16(p + 2, &applid);
135 capimsg_getu16(p + 4, &cmd);
136 capimsg_getu16(p + 6, &msgid);
139 kprintf("capi%d: ll_receive hdr %04x %04x %04x %04x\n", sc->sc_unit,
140 len, applid, cmd, msgid);
143 if (applid == I4BCAPI_APPLID) {
144 struct capi_cmdtab *e;
145 for (e = i4b_capi_handlers; e->cmd && e->cmd != cmd; e++);
146 if (e->cmd) (*e->handler)(sc, m);
147 else kprintf("capi%d: unknown message %04x\n", sc->sc_unit, cmd);
150 /* XXX we could handle arbitrary ApplIds here XXX */
151 kprintf("capi%d: message %04x for unknown applid %d\n", sc->sc_unit,
156 i4b_Bfreembuf(m->m_next);